Quercus shumardii - Shumard's Oak
Family - Fagaceae
Size - Large tree, 75 feet in height with a spread of 40 to 50 feet. Pyramidal in youth becoming more rounded and open at maturity. Growth rate is medium to fast, 1 1/2 to 2 feet over a 20 year period. The Shumard in this picture was planted as a 1 1/2" caliper, 20 gallon tree in late 1987. In 1997, it is at least 8 to 10" in caliper and is pushing 30 + feet. It was the very first tree I planted on this campus and was donated by Dr. Royce Boyer.
Foliage - Alternate, simple with 5 to 9 bristly tipped lobes. Large rounded sinuses between lobes. Foliage is dark green in the summer turning a very attractive scarlet in the fall.
Flower/Fruit/Seed - Acorn - 5/8 to 1 1/8" in length, egg shaped, maturing the second year.
Bark - Gray-brown, smooth, with age develops narrow, shallow ridges and furrows.
Pests and Diseases - None noticed
Landscape Use - Excellent shade tree for parks, campuses, homes and large commercial sites. Strong and durable with a relatively fast growth rate.
Performance - 10 Rated zones 5 to 9 and should be used more than it is although it is not a uncommon tree. Shumard and Scarlet Oak are my two favorites in terms of fall color, both being very similiar in morphology. A common problem of many Oaks in the Red Oak subgroup is chlorosis, a physiological problem of iron utilization generally due to high pH soils. Shumard is unaffected by this problem, at least in my experience and what has been reported. Is variable in the conditions it tolerates and is often found in well drained soils along flood plains and also on dry ridges and limestone hills in its habitat. Named for Benjamin Franklin Shumard (1820-1869), state geologist of Texas.